| Piú viste - Mars Reconnaissance Orbiter (MRO) |
PSP_008301_2480_RED_abrowse-PCF-LXTT-00.jpgFeatures of Vastitas Borealis: Polygons (CTX Frame - Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)134 visiteCaption NASA:"This image is one of many that have been taken over the Phoenix Landing Site. The Phoenix Lander launched from Cape Canaveral, Florida in August 2007 and will reach the surface of Mars on 25 May 2008. One of the reasons that this Region of Mars was selected for the Landing Site is based on the overall lack of rocks that could prove hazardous to the Lander. Among the many science goals, Phoenix will analyze the Surface Dust as well as dig into an ice-rich layer which is predicted to lie within inches of the Martian Surface. The Polygons are most likely the result of temperature oscillations which cause this ice to crack resulting in the Surface that is visible today. MareKromium
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Psp_010689_2025_red~0.jpgTectonic Fissure (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)134 visiteThis image of a region East of Tooting Crater is centered on a Tectonic Fissure West of the Olympus Mons Aureole. Three other Channel Systems formed along it.
The feature of note is a broad shallow Channel System exhibiting a braided pattern that abruptly changes to a steep walled channel system near the Fissure.
These steep walled channel systems are thought to be formed when ground water flowing out along a cliff undermines the slope resulting in collapse of overlying materials. Erosion then typically moves in a headward direction along the pre-existing shallow Channel System. This process is known as "Groundwater Sapping".
There are other places on Mars (such as Cerberus Fossae), where these fissures appear to have flood channels associated with them.
Within this channel there is a more resistant, cliff-forming layer near the surface with some defined horizontal Strata (such as Layers). Multiple Dark Streaks known as slope streaks originate from the base of this hard layer. Slope Streaks are generally dark when first formed and then gradually fade over time. The origin of these Slope Streaks is still under debate, but they are thought to be dry Dust Avalanches.
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Mars Local Time: 15:38 (middle afternoon)
Coord. (centered): 22,1° North Lat. and 208,7° East Long.
Spacecraft altitude: 286,2 Km (such as about 178,9 miles)
Original image scale range: 57,3 cm/pixel (with 1 x 1 binning) so objects ~1,72 mt across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 0,8°
Phase Angle: 53,9°
Solar Incidence Angle: 53° (meaning that the Sun is about 37° above the Local Horizon)
Solar Longitude: 153,3° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Dr Paolo C. Fienga - Lunar Explorer Italia MareKromium
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ESP_025399_2535-PCF-LXTT.jpgSpring on the Edge of the North Polar Erg (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)134 visiteMars Local Time: 14:14 (early afternoon)
Coord. (centered): 73,3° North Lat. and 355,1° East Long.
Spacecraft altitude: 317,5 Km (such as about 198,5 miles)
Original image scale range: 31,8 cm/pixel (with 1 x 1 binning) so objects ~ 95 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: POLAR STEREOGRAPHIC
Emission Angle: 2,1°
Sun - Mars - MRO (or "Phase") Angle: 59,4°
Solar Incidence Angle: 58° (meaning that the Sun is about 32° above the Local Horizon)
Solar Longitude: 49,0° (Northern Spring)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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ESP_025296_1535-PCF-LXTT-00-B.jpgExposed "Uplifted" Bedrock (CTX Frame "B" - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)134 visiteMars Local Time: 14:54 (early afternoon)
Coord. (centered): 26,3° South Lat. and 305,2° East Long.
Spacecraft altitude: 255,8 Km (such as about 159,9 miles)
Original image scale range: 25,6 cm/pixel (with 1 x 1 binning) so objects ~ 77 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 1,2°
Sun - Mars - MRO (or "Phase") Angle: 62,0°
Solar Incidence Angle: 61° (meaning that the Sun is about 29° above the Local Horizon)
Solar Longitude: 45,4° (Northern Spring)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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ESP_026378_1730-PCF-LXTT-01.jpgFeatures of West Candor Chasma (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)134 visiteMars Local Time: 15:13 (early afternoon)
Coord. (centered): 6,733° South Lat. and 284,485° East Long.
Spacecraft altitude: 266,6 Km (such as about 166,6 miles)
Original image scale range: 26,7 cm/pixel (with 1 x 1 binning) so objects ~ 80 cm across are resolved (with 4 x 4 binning)
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 9,8°
Sun - Mars - MRO (or "Phase") Angle: 50,0°
Solar Incidence Angle: 57° (meaning that the Sun is about 33° above the Local Horizon)
Solar Longitude: 82,4° (Northern Spring)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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ESP_025579_2580-PCF-LXTT-00.jpgDefrosting Northern Dunes (CTX Frame and EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)134 visiteMars Local Time: 13:57 (Early Afternoon)
Coord. (centered): 77,982° North Lat. and 115,529° East Long.
Spacecraft altitude: 318,6 Km (such as about 199,1 miles)
Original image scale range: 63,7 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 91 cm across are resolved (with 4 x 4 binning)
Map projected scale: 50 cm/pixel
Map projection: POLAR STEREOGRAPHIC
Emission Angle: 5,0°
Sun - Mars - MRO (or "Phase") Angle: 63,1°
Solar Incidence Angle: 59° (meaning that the Sun is about 31° above the Local Horizon)
Solar Longitude: 55,2° (Northern Spring/Southern Fall)
Credits: NASA/JPL/University of Arizona MareKromium
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PSP_003180_0945_RED_abrowse-03.jpgSouth Polar Dust Fans (Enhanced Natural Colors; Credits for the add. process. and color.: Dr Paolo C. Fienga)134 visitenessun commentoMareKromium
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PSP_009725_2485_RED.jpgPhoenix Landing Site (possible True Colors; credits: Lunar Explorer Italia)133 visiteMars Local Time: 14:48 (early afternoon)
Coord. (centered): 68,2° North Lat. and 234,3° East Long.
Spacecraft altitude: 324,1 Km (such as about 202,6 miles)
Original image scale range: 32,4 cm/pixel (with 1 x 1 binning) so objects ~97 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 15,6°
Phase Angle: 66,9°
Solar Incidence Angle: 53° (meaning that the Sun is about 37° above the Local Horizon)
Solar Longitude: 116,6° (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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PSP_009343_1700_RED-abrowse-PCF-LXTT.jpgVents on the Floor of Arsia Mons' Caldera (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)133 visitenessun commentoMareKromium
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PSP_004311_1050_RED_abrowse-PCF-LXTT.jpgBasal Exposure of South Polar Layered Deposits - SPLD (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)133 visitenessun commentoMareKromium
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ESP_022699_0985_RED_abrowse-PCF-LXTT.jpgInca City - ice-free (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)133 visitenessun commentoMareKromium
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ESP_022657_1260_RED_abrowse-PCF-LXTT-02.jpgUnnamed Crater in Noachis Terra (EDM n.2 - Absolute Natural Colors; credits for the additional process. and color.: Drr Gianluigi Barca and Paolo C. Fienga - Lunexit Team) 133 visiteUno SPLENDIDO esempio di Cratere Secondario di modeste (anzi: modestissime) dimensioni e "relativamente" recente. Con ogni probabilità, ed a nostro umilissimo parere, questo "minimal secondary crater" non è correlato al Cratere Senza Nome di cui al CTX Frame.MareKromium
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